The Gear,spur, cataloged under National Stock Number 3020-00-025-3503, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Iwc Llc Dba Ideal Windlass Company. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-025-3503 |
| Primary Part Number | A4639 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — No Item Name Available |
| Manufacturer | Iwc Llc Dba Ideal Windlass Company |
| Status | ACTIVE |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance From Bore Center to Keyway Bottom | 0.9380 INCHES BOTH ENDS IN |
| Body Style | WEBBED, OFFSET, SOLID |
| Material | STEEL OVERALL |
| Body Recess Nominal Depth | 0.063 INCHES FIRST END IN |
| Keyway Nominal Width | 0.375 INCHES BOTH ENDS IN |
| Style Designator | HUBLESS, RECESSED BODY |
| Nominal Outside Diameter | 4.200 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Face Nominal Width | 1.750 INCHES IN |
| Bore Nominal Diameter | 1.4990 INCHES BOTH ENDS IN |
| Material Document and Classification | CAGE 80393,17-10P MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Teeth Quantity | 19 |
| Pitch Diameter | 3.8000 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| A4639 PRIMARY | Iwc Llc Dba Ideal Windlass Company (USA) |
NSN 3020-00-025-3503 is a Gear,spur, manufactured by Iwc Llc Dba Ideal Windlass Company, classified under FSC 3020 (No Item Name Available). Status: active.
NSN 3020-00-025-3503 has 1 cross-referenced part number: A4639 (Iwc Llc Dba Ideal Windlass Company).
There are 2 known substitutes for 3020-00-025-3503: 5360-00-356-7139, 5315-00-682-1811. Verify interchangeability with system specifications before substitution.
Key specifications for A4639: Bore Style: PLAIN BOTH ENDS; Nominal Distance From Bore Center to Keyway Bottom: 0.9380 INCHES BOTH ENDS IN; Body Style: WEBBED, OFFSET, SOLID; Material: STEEL OVERALL. 14 total characteristics are documented in the Federal Logistics Information System.